Rainfall had dislodged debris from the slopes of the volcano.是什么意思？

Rainfall had dislodged debris from the slopes of the volcano.

雨水冲走了火山坡面上的岩屑。

rainfall

n. 阵雨，降雨，降雨量；

例句
Victoria Falls has had above average levels of rainfall this year...
维多利亚瀑布今年的降雨量超过了平均水平。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

dislodged

v. 把…赶出，从…逐出，把…移去( dislodge的过去式和过去分词 )；

例句
Rainfall had dislodged debris from the slopes of the volcano...
雨水冲走了火山坡面上的岩屑。

debris

n. 碎片，残骸，残渣，[地]岩屑，垃圾，破片；

例句
The debris slowly decomposes into compost...
这些垃圾慢慢地分解成了堆肥。

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

slopes

n. 斜坡( slope的名词复数 )，斜面，倾斜，山坡；v. 有斜度( slope的第三人称单数 )，悄悄地走，潜

例句
...a Bantu people who live on the southern slopes of the mountain.
住在山南坡的班图人

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

volcano

n. 火山；

例句
...when the long dormant volcano of Mount St Helens erupted in 1980...
当长期休眠的圣海伦斯火山在 1980 年爆发时